⚡ Marquis® SUV M7 Replacement Circuit Board — 600-6279 (SUV1UR1) — Balboa® 52568 — 2002 Euphoria CS / Reward CS / Destiny CS
Genuine Balboa®-manufactured SUV M7 circuit board for Marquis® 2002 Euphoria CS, Reward CS, and Destiny CS spa models — 8-pin phone cable connection.
⚠️ IMPORTANT — PLEASE READ BEFORE ORDERING
- Chip number identification is mandatory. The chip number for this board is SUV1UR1(x) — with confirmed revisions SUV1UR1, SUV1UR1A, and SUV1UR1B. Locate the white chip sticker near the center of your existing board. Do not order based on appearance alone.
- “Or any last letter higher” — this board covers all chip suffix revisions up to and including SUV1UR1B, and any subsequent revisions with a later last letter.
- Model year is specific. This board is used in 2002 model year Marquis Euphoria CS, Reward CS, and Destiny CS spas. Other years and models use different boards.
- Non-returnable. Circuit boards cannot be resold once purchased. Confirm chip number and model year before ordering.
📋 Product Overview
The Marquis® 600-6279 circuit board is the Balboa®-manufactured OEM replacement PCB for Marquis spa control systems using the SUV M7 platform. The Balboa Water Group part number is 52568 (system number 52567-02). This board is designed for 2002 Marquis Euphoria CS, Reward CS, and Destiny CS spa models and uses Balboa’s M7 technology for integrated temperature and water flow sensing.
The board uses an 8-pin phone style cable connector for topside panel connection and supports the SUV1UR1 chip family. The SUV M7 is one of Balboa’s earlier M7 platform board designs, pre-dating the VS and EL series. The board is compatible with Balboa M7 sensor assemblies, the 58010 or 58083 heater assembly, and standard copper or jumper strap connections.
💫 Key Features
✅ Genuine Balboa®-manufactured OEM circuit board — for Marquis® SUV M7 systems
✅ Marquis Part Number: 600-6279 (also: MRQ600-6279)
✅ Balboa Part Numbers: 52568 / 52567-02
✅ Chip Number: SUV1UR1(x) — covers SUV1UR1, SUV1UR1A, SUV1UR1B and higher revisions
✅ For 2002 Marquis Euphoria CS, Reward CS, and Destiny CS
✅ 8-pin phone style cable connector
✅ Balboa M7® technology — no pressure switch required
✅ Approximate dimensions: 9″ L × 5.25″ W
✅ Factory-new — never installed
✅ 1-year limited manufacturer’s warranty
🔧 Technical Specifications
| Specification | Value |
|---|---|
| Marquis Part Number | 600-6279 (also: MRQ600-6279) |
| Balboa Part Numbers | 52568 / 52567-02 |
| Chip Number | SUV1UR1(x) — covers SUV1UR1, SUV1UR1A, SUV1UR1B |
| System | SUV M7 |
| Technology | Balboa M7® — no pressure switch required |
| Topside Connector | 8-pin phone style cable |
| Compatible Models | 2002 Marquis Euphoria CS, Reward CS, Destiny CS |
| Board Dimensions (approx.) | 9″ L × 5.25″ W |
| Board Type | New — factory original |
| Warranty | 1-year limited manufacturer’s warranty |
| Returns | Non-returnable |
⚠️ For voltage, amperage, heater wattage, and pump configuration details, refer to the wiring diagram and rating label on your spa’s equipment compartment cover or the 52567-02 system documentation.
🔗 Compatibility Guide
Compatible Spa Models:
| Model | Year | Notes |
|---|---|---|
| Marquis® Euphoria CS | 2002 | Chip SUV1UR1B (or any last letter higher) |
| Marquis® Reward CS | 2002 | Chip SUV1UR1B (or any last letter higher) |
| Marquis® Destiny CS | 2002 | Chip SUV1UR1B (or any last letter higher) |
⚠️ Year is critical. Other model years of these spas — even with the same model names — use different circuit boards with different chips. Always confirm the chip number on your existing board before ordering.
How to Confirm Compatibility:
- Locate the chip number sticker near the center of your existing board — confirm it reads SUV1UR1, SUV1UR1A, or SUV1UR1B
- Confirm your spa is from 2002 model year
- Confirm the topside uses an 8-pin phone style cable connection
Replaces These Part / Chip Numbers:
| Part / Chip Number | Notes |
|---|---|
| 600-6279 | Marquis PN — this board |
| MRQ600-6279 | Marquis alternate PN |
| 52568 | Balboa board PN |
| 52567-02 | Balboa system PN |
| SUV1UR1 | Base chip revision |
| SUV1UR1A | Earlier chip revision |
| SUV1UR1B | Current confirmed chip revision |
Compatible Accessories:
| Part Number | Description |
|---|---|
| 650-0635 / 650-0490 | Compatible control panels |
| 32016 | Balboa M7 Sensor Assembly |
| 58010 | Heater Assembly (Balboa) |
| 58083 | Balboa M7 Heater Manifold, 5.5kW, 240V, with sensors |
| 48-0023 | Jumper straps (preferred replacement for copper straps) |
| 30511 | Copper straps (original type) |
| 30039 / 30015 | Copper straps (alternate) |
🛠️ Installation Requirements
⚠️ Installation must be performed by a licensed electrician in compliance with NEC and all applicable local codes.
Pre-Installation Checklist:
- [ ] Confirm chip number on existing board (SUV1UR1, SUV1UR1A, or SUV1UR1B)
- [ ] Confirm spa is 2002 Marquis Euphoria CS, Reward CS, or Destiny CS
- [ ] Confirm 8-pin phone style cable topside connection
- [ ] Inspect heater assembly and sensors — consider replacing if worn (see compatible parts above)
- [ ] Photograph all wiring and DIP switch positions before removal
- [ ] Disconnect all power at GFCI breaker or service disconnect
- [ ] Allow capacitors to discharge before handling board
Electrical Requirements:
| Requirement | Specification |
|---|---|
| GFCI | Class A GFCI required — NEC Article 680 |
| Ground & Bonding | Required — NEC Article 680 |
| Dedicated Circuit | Required |
| Disconnect Box | Within line of sight of spa, at least 5 ft away |
| Voltage | Refer to equipment label on spa |
| Wire Type | Copper conductors only |
⚠️ Safety Warnings
- ⚠️ ALWAYS disconnect all power before circuit board work
- ⚠️ Licensed electrician installation required; NEC Article 680 compliance mandatory
- ⚠️ GFCI required; grounding and bonding required per NEC Article 680
- ⚠️ Chip number must be SUV1UR1 family — confirm before ordering
- ⚠️ 2002 model year only — even same model names from other years use different boards
- ⚠️ Damage from incorrect installation is NOT covered under warranty
❓ Frequently Asked Questions
Q: What does “or any last letter higher” mean for the chip number? A: Balboa uses letter suffixes on chip numbers to indicate firmware revisions (e.g., SUV1UR1A is revision A, SUV1UR1B is revision B). This board covers chip revisions SUV1UR1, SUV1UR1A, and SUV1UR1B, and any later revision using the same base chip number with a higher last letter (C, D, etc.). Always confirm the chip number on your board before ordering.
Q: Does this board require a pressure switch? A: No. The SUV M7 uses Balboa’s M7 technology, which integrates temperature and water flow sensing directly — no separate pressure switch is required.
Q: Do I need to replace the sensors or heater as well? A: Not necessarily, but if your heater or sensors are original 2002 components, this is a good opportunity to inspect them. The board is compatible with the 32016 Balboa M7 Sensor Assembly and the 58083 heater manifold (5.5kW, 240V). Contact Parts4Tubs for guidance.
Q: The copper straps are worn — what are my options? A: Hot tub technicians commonly prefer the 48-0023 jumper straps as a replacement. The original copper straps are also available as 30511, 30039, or 30015.
✅ Why Choose the Marquis® 600-6279 (Balboa® 52568)
✅ Genuine Balboa®-manufactured OEM PCB — for 2002 Marquis SUV M7 systems
✅ SUV1UR1(x) chip family coverage — covers all confirmed revisions
✅ 8-pin phone cable — direct match for 2002 Marquis Euphoria CS, Reward CS, Destiny CS
✅ Balboa M7® technology — no pressure switch required
✅ Factory-new — never installed
✅ 1-year limited manufacturer’s warranty
🤝 Why Buy from Parts4Tubs
✅ Fast US shipping
✅ Chip number and compatibility verification — contact us before ordering if unsure
✅ Compatible sensors, heater assemblies, and straps available
✅ Competitive pricing
🔌 Summary
The Marquis® 600-6279 circuit board (Balboa® 52568, system 52567-02) is the OEM replacement PCB for 2002 Marquis Euphoria CS, Reward CS, and Destiny CS spa models running the SUV M7 control system. It uses an 8-pin phone style cable connection, Balboa M7® technology (no pressure switch), and covers chip revisions SUV1UR1 through SUV1UR1B and any later revision. Board dimensions are approximately 9″ L × 5.25″ W. Compatible accessories include sensors (32016), heater (58083), and jumper straps (48-0023). Non-returnable; 1-year manufacturer’s warranty.
